APA (7th ed.) Zitazioa
(2004). Communicating environmentally sustainable transport: The role of soft measures. OECD.
Chicago Style (17th ed.) Zitazioa
Communicating Environmentally Sustainable Transport: The Role of Soft Measures. Paris, France: OECD, 2004.
MLA (9th ed.) Zitazioa
Communicating Environmentally Sustainable Transport: The Role of Soft Measures. OECD, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.